What is Welcome Suica card?

If you’re just visiting Japan for a short period of time, consider the Welcome Suica card. 

It’s a SUICA card that does NOT require deposit, and good for 28 days. 

** You can buy it at ticket vending machines at the airports, or at JR Travel Service Centers in town. Credit cards are accepted.

Here is the official information providing from EAST JAPAN RAILWAY COMPANY.
https://www.jreast.co.jp/multi/en/welcomesuica/welcomesuica.html